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How do I run Asynchronous callbacks in Playground
...ckoverflow.com")!
URLSession.shared.dataTask(with: url) { data, response, error in
guard let data = data, error == nil else {
print(error ?? "Unknown error")
return
}
let contents = String(data: data, encoding: .utf8)
print(contents!)
}.resume()
PlaygroundPage.curr...
What does it mean when an HTTP request returns status code 0?
...
I believe the error code indicates that the response was empty, (as not even headers were returned). This means the connection was accepted and then closed gracefully (TCP FIN).
There are a number of things which could cause this, but base...
What does “zend_mm_heap corrupted” mean
...y application that I've never had before. I decided to check the Apache's error log, and I found an error message saying "zend_mm_heap corrupted". What does this mean.
...
How to fix Git error: object file is empty?
When I try to commit changes, I get this error:
24 Answers
24
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What is the error “Every derived table must have its own alias” in MySQL?
...ements like SELECT...FROM...WHERE x NOT IN (subquery) AS T will trigger an error
– Nicholas
Mar 16 '19 at 18:06
add a comment
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What is a ViewModelLocator and what are its pros/cons compared to DataTemplates?
...tance the designer won't be able to instantiate the View at all -- it will error out in some controlled manner
If the View has a parameterless constructor the View will be instantiated, but its DataContext will be null so we 'll get an "empty" view in the designer -- which is not very useful
Enter...
How to return a string value from a Bash function
... in your scripts and also harder to "forget to 'eval' and have to fix this error":
declare [-aAfFgilnrtux] [-p] [name[=value] ...]
typeset [-aAfFgilnrtux] [-p] [name[=value] ...]
Declare variables and/or give them attributes
...
-n Give each name the nameref attribute, making it a name refere...
Best way to work with transactions in MS SQL Server Management Studio
...Rollback transaction -- OR commit transaction
If you want to incorporate error handling you can do so by using a TRY...CATCH BLOCK. Should an error occur you can then rollback the tranasction within the catch block.
For example:
USE AdventureWorks;
GO
BEGIN TRANSACTION;
BEGIN TRY
-- Generat...
Error “gnu/stubs-32.h: No such file or directory” while compiling Nachos source code
...
From the GNU UPC website:
Compiler build fails with fatal error: gnu/stubs-32.h: No such file or
directory
This error message shows up on the 64 bit systems where GCC/UPC
multilib feature is enabled, and it indicates that 32 bit version of
libc is not installed. There are...
Python unittest - opposite of assertRaises?
...er9876 is conceptually flawed: if you test for the non-raising of say ValueError, but ValueError is instead raised, your test must exit with a failure condition, not an error one. On the other hand, if in running the same code you would raise a KeyError, that would be an error, not a failure. In pyt...